Cracked my Crack - Question.

John EH · 1424

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Offline John EH

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on: December 14, 2016, 12:48:01 PM
I mounted a Raspberry Pi and HiFiBerry DAC under the hood years ago in my Crack, all was well.  I upgraded to the DAC + Pro they offer and needed to put right angle connectors on the RCA's under the hood.

Well, I slipped and I whacked a big heat sink  on the Speedball and then powered up and noticed the two LED's in front of the heat sink weren't powering on.  Disassembled and seems I physically broke the TIP-50.  The metal separated from the plastic.

Is this a good replacement part?  (already ordered some)

https://www.digikey.com/product-detail/en/on-semiconductor/TIP50G/TIP50GOS-ND/920355

Stupid.  But my soldering skills are still awesome.  Removed the TIP-50 with no problems on the board.  Just need to slap a new one in I think.

Whacking that TIP-50 and breaking it would make the LED's not come on, right?



Offline Paul Birkeland

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Reply #1 on: December 14, 2016, 02:33:24 PM
That TIP50G should work OK.  With a broken transistor, it's difficult to say what else in the circuit could be damaged without replacing the transistor first.

Paul "PB" Birkeland

Bottlehead Grunt & The Repro Man


Offline Doc B.

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Reply #2 on: December 14, 2016, 04:48:04 PM
If the LEDs are out the 2N2222A could be shorted too. Might be worth checking it.

Dan "Doc B." Schmalle
President For Life
Bottlehead Corp.


Offline John EH

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Reply #3 on: December 19, 2016, 10:56:21 AM
Got it.  It was just the TIP-50 as I suspected.  Got some from Digi-Key and every sweet little LED lit up just fine.  Sounds great.  I have 2 Cracks at home and both are amazing.



Offline John EH

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Reply #4 on: December 19, 2016, 11:18:00 AM
Just for fun here's the old girl.